Air baffle for driers



Se t. 13,1927. 6

F. KERSHAW ET AL AIR BAFFLE FOR DRIERS Filed Sept. 1924 v f5 ['5 I I]. Y

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, flectors 16. These deflectors may be of any Patented Sept. 13, 192') FREDERICK KERSHAW AND ALPHEUS O. HURXTHAL, OF PHILADELPHIA, PENNSYL- VANIA, ASSIGNORS TO PROGTOR & SCHWARTZ, INCORPORATED, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

AIR BAFJFLIE FOR DRIERS.

Application filed September 17, 1924.

The object of our invention is to provide a drier, in which heated air is circulated by means of air bathe that change the direction of movement of the air, distributing it uniformly over a given area in the drying chamber.

In the accompanying drawings:

Fig. 1 is a transverse sectional view of a drier, illustrating our invention Fig. 2 is an enlarged sectional i'lKW, show ing a method of fastening the bailles at a predetermined angle; and

Fig. 3 is a detached perspective View. showing one end of a battle.

Referring to the drawings, 1 is the easing of a drier of the type having longitudinally arranged partitions 2, 2. which separate a central drying chamber 3 from side circulating chambers 4. In the circulating chambers are heating pipes 5 for heating the air in circulation. In the present instance, at the upper end of the partitions are two openings 6, in which are located circulating fans 7, which are mounted on driven shafts 8. In the lower portion of each partition 2- are openings 9 through which the air circulates. As the fans are driven, the air is drawn from the circulating chambers 4; and is discharged into the upper end of the drying chamber 3. Secured to the walls of the drying chamber are rails 10, on which chains 11 travel. These chains are driven in the ordinary manner. Extending from the chains on op.- posite sides are cross bars 12, on which are su ended the materials to be dried.

n the upper portion of the drying chamber 3 are inclined supporting bars 13, angular in cross section, having notches l t for the reception of the cross bars 15 of delength desired, depending upon the height of the space in the upper portion of the dr ing chamber in which they are located. a the present instance, the bar 15 and the de flectors 16 are made of. a single piece of sheet metal. The metal is bent to form the bar, as shown clearly in Fi s. 2 and 3. Each 'end of each deflector is ent at an angle, as at 17, and is slotted, as at 18, for the reception of a bolt 19 that secures the deflector to the supporting bars 13. The bolts 19 pass through one of a series of perforatlons 20 in Serial No. 738,166.

the bar 13 so that the deflector can be adjusted to any angle desired and can be secured in the position in which it is adjusted by the bolts 19. There is a series 01' these deflectors suspended from the inclined siipporting bars 13. The deflectors are so suspended that they are in a direct line with the currents of air that are re jected into the drying chamber by the ans it The air strikes these deflectors and passes down in a straight line over and. between the material hung on the sticks so as to dry the material evenly. By adjusting the deflectors. the direction and. deflection of the currents of aircan be adjusted, as dcsi rcd.

The type ol. conveyor to which our in vcntion is applied, is one in which material, such as leather, is suspended on sticks, which are mounted on endless chains so that the material is carried through the drying chamber, while the currents of heated air are circulated transversely in respect to the movement of the conveyer.

It will be understood that the invention can be applied to other types of drying apparatus without dcpartin from the essential features of the invention.

We claim:

1. The combination in a drier, of a vertical partition separating a drying chamber from a circulating chamber; a circulating fan in the partition; inclined supporting bars in the upper portion of the drying chamber; and a series of deflectors suspended from the bars and spaced a art and arranged at an angle in front 0' the fan so that the air in circulation will pass through the spaces between the deflectors, said deflectors directing the air downward through the drying chamben 2. The combination in a drier, of two vertical partitions separating a central drying chamber from side circulating chamhers; a circulating fan in the upper portion of each partition; means for heating the air in circulation; inclined supporting bars in the upper portion of the dr ing chamher; a series of deflectors space apart and suspended from the supporting bars; and means for retaining the deflectors in the sition in which they are adjusted, said eflectors being located in front of the fans so that the air in circulation will pass through J the spaces between the deflectors and will be directed downward by the deflectors.

3,. The combination in a drier, of a casing; two vertical partitions in the casiilg so spaced as to form a' central drying chamber and side circulating chambers; fan openings in the partitions; a circulating fan in each opening; lower openings in the-partitions to allow the air to circulate; means for heating the air; two series of inclined supeeaeee porting bars notched at their upper edges;

deflectors located at the notches of the bars and through the perforations' in the bars,

said bolts retaining the deflectors in the position in which the are ad'usted.

FREDE ICK KfilltSli-IAW. ALPHEUS U. H UlR-XTHAL; 

